Hexachlorocyclopentadiene

CAS RN:77-47-4

Ecotoxicity Values

LC50 Pimephales promelas (Fathead minnow, early juvenile) 6.7 ug/L/30 days; flow-through
LC50 Pimephales promelas (Fathead minnow, larval) 7.0 ug/L/96 hr; flow-through
LC50 Penaeus duorarum (Pink shrimp) 0.34 ug/L/96 hr /Conditions of bioassay not specified in source examined/
LC50 Microhyla ornata (Ornate narrow-mouthed frog) 7.3 mg/L/96 hr /Conditions of bioassay not specified in source examined/
LC50 Saccobranchus fossilis (Asian stinging catfish) 3.0 mg/L/24 hr; 2.8 mg/L/48 hr; 2.6 mg/L/72 hr; 2.4 mg/L/96 hr /Conditions of bioassay not specified in source examined/
LC50 Lagodon rhomboides (Pinfish) 86 ug/L/96 hr /Conditions of bioassay not specified in source examined/
LC50 Neanthes arenaceodentata 371 ug/L/96 hr (95% confidence interval 297-484 ug/L); static, salinity 28 ppt /from table/
LC50 Daphnia magna 93 ug/L/24 hr (95% confidence interval: 78.9-109.6 ug/L); 52 ug/L/48 hr (95% confidence interval: 44.8-60.9 ug/L); static, 17 deg C, soft water /from table/
LC50 Mysidopsis bahia (Mysid shrimp) 7 ug/L/96 hr (95% confidence interval: 6-8 ug/L); flow-through, salinity 24 ppt /from table/
LC50 Palaemonetes pugio (Grass shrimp) 42 ug/L/96 hr (95% confidence interval: 36-50 ug/L); static, salinity 22 ppt /from table/
LC50 Carassius auratus (Goldfish) 78 ug/L/96 hr /Conditions of bioassay not specified in source examined/
LC50 Salmo gairdneri (Rainbow trout) 120 ug/L/4 hr /Conditions of bioassay not specified in source examined/
LC50 Cyprinodon variegatus (Sheepshead minnow) 45 ug/L/96 hr (95% confidence interval: 34-61 ug/L); static, salinity 24 parts per thousand /Conditions of bioassay not specified in source examined/
LC50 Ictalurus punctatus (Channel catfish) 190 ug/L/24 hr (95% confidence interval: 140-250 ug/L); 150 ug/L/48 hr (95% confidence interval: 130-180 ug/L); 97 ug/L/96 hr (81-120 ug/L); static, 22 deg C, soft water /from table/
LC50 Lagodon rhomboides (Pinfish) 48 ug/L/96 hr (95% confidence interval: 41-58 ug/L); static, salinity 22 parts per thousand /from table/
LC50 Leiostomus xanthurus (Spot croaker) 37 ug/L/96 hr (95% confidence interval: 30-42 ug/L); static, salinity 22 parts per thousand /from table/
LC50 Lepomis macrochirus (Bluegill sunfish) 500 mg/L/24 hr; 30 mg/L/48 hr; 25 mg/L/96 hr; aerated at 25 deg C
LC50 Leuciscus idus melanotus (Carp) 160-320 ug/L/96 hr; aerated at 20 deg C
LC50 Micropterus salmoides (Largemouth bass) >500 mg/L/24 hr; 35 mg/L/48 hr; 20 mg/L/96 hr; aerated at 25 deg C
LC50 Lepomis macrochirus (Bluegill sunfish; 0.45 g) 170 ug/L/24 hr (95% confidence interval: 140-210 ug/L); 150 ug/L/48 hr (95% confidence interval: 120-180 ug/L); 130 ug/L/96 hr (95% confidence interval: 110-170); static, 22 deg C, soft water /from table/
LC50 Mysidopsis bahia (Mysid shrimp) 32 ug/L/96 hr (95% confidence interval: 27-37 ug/L); static, salinity 24 ppt /from table/
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed